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铁道建筑 1993年第5期33卷 36-37页

作者： Cline lemmon 张元

英国铁路公司大约有桥梁66000孔,近一半是用砖或石建成的拱桥。伴随所有权带来的责任是首先确保桥梁能够安全地承受所需承受的荷载,其次维修时要节省费用。目前,许多桥梁都超过了100年。

关键词：计算机桥维修

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液流电池双极板材料研究进展

现代化工 2020年第12期40卷 77-80,86页

作者：杨虹刘庆华 John lemmon 缪平北京低碳清洁能源研究院北京102209

对双极板材料的最新研究进展进行了综述,对不同的材料进行比较分析,提出了面临的挑战,并对未来发展方向进行了展望。

关键词：液流电池双极板材料储能

Genome-wide Analysis of Transcriptional Variability in a Large Maize-Teosinte Population

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Molecular Plant 2018年第3期11卷 443-459页

作者： Xufeng Wang Qiuyue Chen Yaoyao Wu Zachary H. lemmon Guanghui Xu Cheng Huang Yameng Liang Dingyi Xu Dan Li John F. Doebley Feng Tian National Maize Improvement Center of China Beijing Key Laboratory of Crop Genetic Improvement Laboratory of Crop Heterosis and Utilization Joint International Research Laboratory of Crop Molecular Breeding China Agricultural University Beijing 100193 China Department of Genetics University of Wisconsin Madison Wl 53706 USA Present address: Cold Spring Harbor Laboratory Cold Spring Harbor NY 11724 USA

Gene expression regulation plays an important role in controlling plant phenotypes and adaptation. Here, we report a comprehensive assessment of gene expression variation through the transcriptome analyses of a large maize-teosinte experimental population. Genome-wide mapping identified 25 660 expression quantitative trait loci （eQTL） for 17 311 genes, capturing an unprecedented range of expression variation. We found that local eQTL were more frequently mapped to adjacent genes, displaying a mode of expression piggybacking, which consequently created co-regulated gene clusters. Genes within the co-regulated gene clusters tend to have relevant functions and shared chromatin modifications. Distant eQTL formed 125 significant distant eQTL hotspots with their targets significantly enriched in specific functional cate- gories. By integrating different sources of information, we identified putative trans- regulators for a variety of metabolic pathways. We demonstrated that the bHLH transcription factor R1 and hexokinase HEX9 might act as crucial regulators for flavonoid biosynthesis and glycolysis, respectively. Moreover, we showed that domestication or improvement has significantly affected global gene expression, with many genes targeted by selection. Of particular interest, the Bx genes for benzoxazinoid biosynthesis may have undergone coordinated cis-regulatory divergence between maize and teosinte, and a transposon insertion that inactivates Bx12 was under strong selection as maize spread into temperate environments with a distinct herbivore community.

关键词： expression quantitative trait loci (eQTL) expression piggybacking hotspots maize teosinte

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锂基CO_2高温吸附剂研究进展

现代化工 2019年第3期39卷 64-68页

作者：张赛刘庆华 John lemmon 李永龙北京低碳清洁能源研究院北京102211

总结了CO_2高温捕集锂基吸附剂的研究进展。详细介绍了锂基吸附剂的制备方法、CO_2吸脱附性能、改性方法及低成本锂基吸附剂的开发。结合碳捕集形势提出了目前锂基吸附材料开发面临的挑战,并对锂基吸附材料发展进行了展望。

关键词： CO2捕集高温吸附固体吸附剂锂基吸附剂

Cross-regional drivers for CCUS deployment

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Clean Energy 2020年第3期4卷 202-232页

作者： Anthony Y.Ku Peter J.Cook Pingjiao Hao Xiaochun Li John P.lemmon Toby Lockwood Niall Mac Dowell Surinder P.Singh Ning Wei Wayne Xu National Institute of Clean and Low Carbon Energy BeijingP.R.China NICE America Research Mountain ViewCAUSA Centre for CCS Research University of MelbourneVictoriaAustralia State Key Laboratory for Geo-mechanics and Geo-Technical Engineering Institute of Rock and Soil MechanicsChinese Academy of SciencesWuhanHubei ProvinceChina IEA Clean Coal Centre LondonUK Centre for Environmental Policy Imperial College LondonUK Centre for Process Systems Engineering Imperial CollegeLondonUK

CO_(2)capture,utilization and storage(CCUS)is recognized as a uniquely important option in global efforts to control anthropogenic greenhouse-gas(GHG)*** significant progress globally in advancing the maturity of the various component technologies and their assembly into full-chain demonstrations,a gap remains on the path to widespread deployment in many *** this paper,we focus on the importance of business models adapted to the unique technical features and sociopolitical drivers in different regions as a necessary component of commercial scale-up and how lessons might be shared across *** identify three archetypes for CCUS development-resource recovery,green growth and low-carbon grids-each with different near-term issues that,if addressed,will enhance the prospect of successful commercial *** archetypes provide a framing mechanism that can help to translate experience in one region or context to other locations by clarifying the most important technical issues and policy *** forward,the archetype framework also provides guidance on how different regions can converge on the most effective use of CCUS as part of global deep-decarbonization efforts over the long term.

关键词： CCUS CO_(2) capture decarbonization regional storage utilization

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非水氧化还原液流电池研究进展

储能科学与技术 2020年第2期9卷 617-625页

作者：邢学奇刘庆华 lemmon John 北京低碳清洁能源研究院北京102211

氧化还原液流电池是一类新兴的电化学储能技术,具备安全性好、寿命长、功率和容量解耦、效率高等特点,适用于可再生能源消纳、电力辅助服务、输配电、分布式发电和用户侧等应用场景。主流的水系液流电池具备较好的安全性,但是能量密度... 详细信息

氧化还原液流电池是一类新兴的电化学储能技术,具备安全性好、寿命长、功率和容量解耦、效率高等特点,适用于可再生能源消纳、电力辅助服务、输配电、分布式发电和用户侧等应用场景。主流的水系液流电池具备较好的安全性,但是能量密度普遍低于50 W·h/L,发展非水液流电池有利于打破水溶剂电化学窗口的限制,提高活性物质的电压和有效含量,目前成为国内外广泛关注的热点。本文对近几年非水液流电池的研究进展进行了介绍。根据电池活性物质种类的不同,综述了非水金属配合物体系、非水有机体系、非水聚合物体系和非水金属锂/有机混合体系的研究工作,并简要阐释了每类非水体系的优势和存在的挑战。目前,一些非水液流电池的开路电压超过3 V,理论能量密度高于200 W·h/L,具备了显著的高能量密度的优势,有望做为动力电池使用,将液流电池的应用拓展到电动车领域,实现液流电池应用领域拓展和动力电池技术路线选择范围增加的双突破。

关键词：液流电池金属配合物活性物质有机活性物质能量密度

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液流电池多孔膜材料研究进展

现代化工 2020年第1期40卷 50-53页

作者：张赛刘庆华 John lemmon 缪平姜忠义北京低碳清洁能源研究院北京102211 天津大学化工学院天津300072

总结了液流电池多孔膜材料的研究进展。详细介绍了液流电池多孔膜材料的工作机理、制备方法、性能优化方法等。结合目前大规模储能领域以及液流电池开发,提出了未来多孔膜材料的发展方向。

关键词：液流电池多孔膜材料相转化孔结构调控

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碳布电极材料对全钒液流电池性能的影响

储能科学与技术 2020年第3期9卷 707-713页

作者：杨虹 lemmon John 缪平刘庆华北京低碳清洁能源研究院北京102211

碳布电极材料具有价格低廉、孔结构丰富等优点,能够有效促进反应传质过程,在提升电池性能方面具有重要作用,但是对其结构及性能缺少系统性的研究。本工作将多孔碳布用作全钒液流电池电极材料,采用X射线光电子能谱仪、扫描电子显微镜、... 详细信息

碳布电极材料具有价格低廉、孔结构丰富等优点,能够有效促进反应传质过程,在提升电池性能方面具有重要作用,但是对其结构及性能缺少系统性的研究。本工作将多孔碳布用作全钒液流电池电极材料,采用X射线光电子能谱仪、扫描电子显微镜、拉曼及压汞仪等表征手段研究了不同电极表面结构和形貌的区别,通过极化曲线和单电池充放电测试手段对其电化学性能进行考察。结果表明,电极碳纤维表面较高的无序化程度,丰富的缺陷位、较高的羰基官能团含量以及孔隙率可以有效增大电极和电解液的有效接触面积,为氧化还原反应提供更多的活性位,促进氧原子从H2O转移到VO2+以及钒离子间的氧化还原反应,从而显著提升全钒液流电池性能。单电池测试结果表明,电池具有较高的功率密度和循环稳定性,在100 mA/cm^2电流密度下,其功率密度可提升至686.2 mW/cm^2,电池电流效率、电压效率以及能量效率分别可达97.5%、84.6%以及82.4%,且在100~300 mA/cm^2放电条件下,表现出良好的充放电性能。

关键词：全钒液流电池碳布电极表面结构

Homogenous charge distribution by free-standing porous structure for dendrite-free Li metal anode

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Journal of Energy Chemistry 2020年第5期29卷 68-72页

作者： Danmiao Kang Kun Tang Joonho Koh Wenbin Liang John Plemmon Present address:Shangshang Road 87.Liyang JiangsuChina.a National Institute of Clean-and-Low-Carbon EnergyFuture Science&Technology CityChangping DistrictBeijing 102209China NICE America Research 2091 Stierlin CtMountain ViewCA 94043United States

Lithium metal has a high theoretical capacity of 3860 mAh g^-1 and a low electrochemical potential(-3.04 V vs.H2/H^+).Hence,using a lithium anode significantly improves the energy density of a secondary ***,the lithium dendrites generated on the lithium anode during the platingdissolution process significantly reduce its cycling life and ***,we provide a simple method for lithium anode protection,by applying a free-standing porous carbon film with a high specific surface area to reduce the local current density and obtain a homogenous ion *** protected lithium anode has a long cycle life over 1000 h when cycled at 3 mA cm^-2 with a lithium capacity of 2.5 mAh cm^-***,the deposited lithium has a smoother surface than Li anode without carbon *** study will promote the wide application of Li-metal-based batteries with high safety levels.

关键词： Li-metal Carbon interlayer Dendrite Charge distribution

活化后钾改性正硅酸锂吸附CO2的性能评价及动力学研究

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化工环保 2020年第1期40卷 74-78页

作者：张赛刘庆华 lemmon John 姜忠义国家能源集团北京低碳清洁能源研究院北京102211 天津大学化工学院天津300350

制备了钾改性正硅酸锂(K-Li4SiO4),并对其进行了自活化,考察了活化后K-Li4SiO4吸附剂在不同温度和CO2浓度气氛中吸附CO2的性能及动力学行为。总体而言,吸附剂的CO2吸附能力随着温度的升高、CO2浓度的增加而提升。在700℃、100%体积分数... 详细信息

制备了钾改性正硅酸锂(K-Li4SiO4),并对其进行了自活化,考察了活化后K-Li4SiO4吸附剂在不同温度和CO2浓度气氛中吸附CO2的性能及动力学行为。总体而言,吸附剂的CO2吸附能力随着温度的升高、CO2浓度的增加而提升。在700℃、100%体积分数CO2气氛中吸附剂的吸附量最大,可达7.9 mmol/g,吸附剂的利用率为95.2%。利用双指数模型能够很好地描述吸附剂在各个温度以及各个CO2浓度气氛下的CO2吸附过程。吸附活化能随着CO2气氛浓度的升高而降低,CO2体积分数为20%,50%,100%时的吸附活化能分别为26448,14035,6178 J/mol。

关键词： CO2捕集钾改性正硅酸锂双指数模型吸附动力学活化